Finding the Fourth Proportional to 22,906.32, 31,610.43 and 12,834.57

Step by Step Solution

1. Step 1: Write the proportion equation
   22,906.32 : 31,610.43 = 12,834.57 : x
2. Step 2: Convert to fraction form
   22,906.32/31,610.43 = 12,834.57/x
3. Step 3: Cross multiply
   22,906.32x = 31,610.43 × 12,834.57
4. Step 4: Simplify right side
   22,906.32x = 405,706,276.57
5. Step 5: Solve for x
   x = 405,706,276.57/22,906.32
6. Step 6: Final answer
   x = 17,711.54